CN108156808A - Conduit and balloon catheter - Google Patents
Conduit and balloon catheter Download PDFInfo
- Publication number
- CN108156808A CN108156808A CN201680002385.2A CN201680002385A CN108156808A CN 108156808 A CN108156808 A CN 108156808A CN 201680002385 A CN201680002385 A CN 201680002385A CN 108156808 A CN108156808 A CN 108156808A
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- layer
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- outer layer
- protrusion
- internal layer
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Links
- 230000002093 peripheral effect Effects 0.000 claims description 53
- 239000000463 material Substances 0.000 claims description 25
- 230000004323 axial length Effects 0.000 claims description 6
- 210000004204 blood vessel Anatomy 0.000 abstract description 13
- 210000000013 bile duct Anatomy 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 11
- 238000004873 anchoring Methods 0.000 abstract description 10
- 239000011347 resin Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
- 238000009954 braiding Methods 0.000 description 10
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- 230000021615 conjugation Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910001000 nickel titanium Inorganic materials 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 210000000941 bile Anatomy 0.000 description 2
- 239000002872 contrast media Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003225 polyurethane elastomer Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 210000004798 organs belonging to the digestive system Anatomy 0.000 description 1
- 210000001819 pancreatic juice Anatomy 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
- A61M25/0012—Making of catheters or other medical or surgical tubes with embedded structures, e.g. coils, braids, meshes, strands or radiopaque coils
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M2025/006—Catheters; Hollow probes characterised by structural features having a special surface topography or special surface properties, e.g. roughened or knurled surface
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M2025/0183—Rapid exchange or monorail catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/1079—Balloon catheters with special features or adapted for special applications having radio-opaque markers in the region of the balloon
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/1088—Balloon catheters with special features or adapted for special applications having special surface characteristics depending on material properties or added substances, e.g. for reducing friction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
- A61M25/0052—Localized reinforcement, e.g. where only a specific part of the catheter is reinforced, for rapid exchange guidewire port
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0108—Steering means as part of the catheter or advancing means; Markers for positioning using radio-opaque or ultrasound markers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/104—Balloon catheters used for angioplasty
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Child & Adolescent Psychology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The subject of the invention is to provide a kind of in the case that even if in outer layer, (preceding extreme direction and rear extreme direction) is stretched in an axial direction, outer layer is not easy to the conduit and balloon catheter removed from internal layer.In conduit (1), outer layer (40) has protrusion (50) in the position of the recess portion (24) of internal layer (10), the protrusion (50) penetrates through gap (25) and deeper enters than enhancement layer (coil case) (30), and extend in the axial direction, so as to improve the bond strength of internal layer (10) and outer layer (40), and, the anchoring effect of layer (coil case) (30) hooking firmly is reinforced according to the protrusion (50) of outer layer (40), conduit (1) is being inserted into blood vessel, bile duct, durings ductus pancreaticus etc., in the case that even if in outer layer (40), in narrow part or choking portion, (preceding extreme direction and rear extreme direction) is stretched in an axial direction, also the possibility that outer layer (40) is removed from internal layer (10) can be reduced.
Description
Technical field
The present invention relates in order to which to being formed in blood vessel, either choking portion is diagnosed or controlled the narrow part in digestive organs
The conduit and balloon catheter treated and used.
Background technology
If it is formed with narrow part or choking portion, blood, bile (bile), pancreatic juice etc. in blood vessel, bile duct, ductus pancreaticus etc.
Flowing is deteriorated.As to this narrow part method that either choking portion is diagnosed or treated, carry out used conduit extensively
Diagnosis or therapy.
Usually, conduit have the internal layer of tubulose, the outer layer coated to the periphery of internal layer and be configured at internal layer with
Enhancement layer between outer layer.Conduit makes internal layer be engaged with outer layer via enhancement layer, therefore is all difficult to improve internal layer anyway
With the bond strength of outer layer.
As this method is solved the problems, such as, there is known such as downcomers：By being set in internal layer from the gap of enhancement layer
Outer layers side is prominent and axially extending and bite the protruding portion of outer layer, so as to improve the bond strength of internal layer and outer layer (for example,
With reference to following patent documents 1).
However, in the conduit recorded in patent document 1, the protruding portion of internal layer is only from one direction of rear end forward end
Extension.Accordingly, there exist following problems：Outer layer by narrow part or choking portion extreme direction has stretched forward when, outer layer easily from
Internal layer is removed.In addition, the protruding portion of internal layer is only provided at than enhancement layer in the outer part.Therefore, bending is being inserted a catheter into
In the case of blood vessel, bile duct, ductus pancreaticus etc., due to guiding-tube bend, stress concentration is in the protruding portion of internal layer and the joint portion of outer layer,
Still remain the problem of outer layer is easily removed from internal layer.
Existing technical literature
Patent document
Patent document 1：No. 2015/012185 pamphlet of International Publication No.
Invention content
Problems to be solved by the invention
The present invention is in view of this thing and the scheme that proposes, even if subject is to provide one kind in outer layer in axial direction (front end
Direction and rear extreme direction) on be stretched in the case of, outer layer is not easy to the conduit and balloon catheter removed from internal layer.
Solution for solving the problem
The above subject is solved by following solved scheme.
The solution of the present invention 1 is a kind of conduit, which is characterized in that is had：The internal layer of tubulose；In above-mentioned internal layer or on
The periphery of internal layer is stated, the enhancement layer of above-mentioned wire rod is wound in a manner of there is gap between adjacent wire rod；And to above-mentioned
The outer layer that enhancement layer is coated, above-mentioned internal layer have the peripheral surface of concaveconvex shape, and the peripheral surface of the concaveconvex shape is in above-mentioned line
The position of material, which is formed with protrusion, is formed with recess portion in the position in above-mentioned gap forms, and above-mentioned outer layer is in the above-mentioned recessed of above-mentioned internal layer
The position in portion has protrusion, which penetrates through above-mentioned gap and deeper enter than above-mentioned enhancement layer, and in the axial direction
Extension.
Conduit of the solution of the present invention 2 according to scheme 1, which is characterized in that the axis of the above-mentioned protrusion of above-mentioned outer layer
To length it is longer than the axial length in the above-mentioned gap of above-mentioned enhancement layer.
The solution of the present invention 3 is a kind of balloon catheter, is had：Conduit described in scheme 1 or 2；And it is engaged in above-mentioned outer
The air bag of layer, above-mentioned balloon catheter are characterized in that above-mentioned outer layer has recessed in a manner of the above-mentioned peripheral surface along above-mentioned internal layer
The peripheral surface of convex form, the peripheral surface of the concaveconvex shape are formed with protrusion in the position of above-mentioned wire rod, in the position in above-mentioned gap
It is formed with recess portion to form, above-mentioned air bag enters the above-mentioned recess portion of above-mentioned outer layer.
The effect of invention
In the conduit of the solution of the present invention 1, internal layer has the peripheral surface of concaveconvex shape, and the peripheral surface of the concaveconvex shape exists
The position of wire rod is formed with protrusion, the position in gap between adjacent wire rod is formed with recess portion and forms, and outer layer is in the recessed of internal layer
The position in portion has protrusion, which penetrates through gap and deeper enter than enhancement layer, and extend in the axial direction.Cause
This, improves the bond strength of internal layer and outer layer, moreover, being reinforced the anchoring effect of layer hooking firmly according to the protrusion of outer layer, i.e.,
Make in the case that (preceding extreme direction and rear extreme direction) is stretched in an axial direction, can also be dropped by narrow part or choking portion in outer layer
The possibility that low outer layer is removed from internal layer.
In the conduit of the solution of the present invention 2, the axial length of the protrusion of outer layer is than the axial direction in the gap of enhancement layer
Length it is longer.Therefore, the anchoring effect of the protrusion of outer layer and enhancement layer not only becomes larger, but also also become radially axially
Greatly, as a result, more enough further possibilities for reducing outer layer and being removed from internal layer.
In the balloon catheter of the solution of the present invention 3, outer layer has concaveconvex shape in a manner of the peripheral surface along internal layer
Peripheral surface, the peripheral surface of the concaveconvex shape, which is formed with protrusion in the position of wire rod, is formed with recess portion in the position in gap forms, and
And air bag enters the recess portion of outer layer.Due to improving the bond strength of air bag and outer layer, even if air bag is made to expand radially
In the case of, the possibility that air bag is removed from outer layer can be also reduced.In addition, by the way that air bag is made to enter the recess portion of outer layer, from
And can assure the bond strength of air bag and outer layer, and the thickness of air bag can be made thinning, as a result, it is possible to improve air bag to lead
Pipe relative to blood vessel, bile duct, ductus pancreaticus etc. insertion.
Description of the drawings
Fig. 1 is the whole overall diagram for the conduit for representing first embodiment.
Fig. 2 is the enlarged drawing in the A portions for being exaggerated Fig. 1.
Fig. 3 is the sectional view for the B-B sections for representing Fig. 2.
Fig. 4 be the conduit of second embodiment with the comparable sectional views of Fig. 3.
Fig. 5 be the conduit of third embodiment with the comparable sectional views of Fig. 3.
Fig. 6 be the conduit of the 4th embodiment with the comparable enlarged drawings of Fig. 2.
Fig. 7 is the sectional view for the C-C sections for representing Fig. 6.
Fig. 8 be the conduit of the 5th embodiment with the comparable sectional views of Fig. 3.
Fig. 9 is the whole overall diagram for the balloon catheter for representing sixth embodiment.
Figure 10 is the enlarged drawing in the D portions for being exaggerated Fig. 9.
Figure 11 be the balloon catheter of the 7th embodiment with the comparable sectional views of Figure 10.
Figure 12 be the conduit of the 8th embodiment with the comparable sectional views of Fig. 3.
Figure 13 be the conduit of the 9th embodiment with the comparable sectional views of Fig. 3.
Specific embodiment
The conduit 1 of first embodiment is illustrated with reference to Fig. 1~Fig. 3.In fig. 1 it is illustrated that left side becomes to internal
Front end side (far side), the right side of insertion become the rear end side (proximal side) operated by operators such as doctors.Fig. 2 is to be exaggerated figure
The enlarged drawing in 1 A portions, Fig. 3 are the sectional views for the B-B sections for representing Fig. 2.
Conduit 1 is, for example, in order to the narrow part conduit that either choking portion is diagnosed or treated and used.Such as Fig. 1 institutes
Show, conduit 1 mainly has catheter shaft 60, the sheet material 70 for the front end for being engaged in catheter shaft 60 and after being engaged in catheter shaft 60
The conjugation tube 80 at end.
As shown in Fig. 2, catheter shaft 60 has successively since inside in the radial direction：Internal layer 10；In the internal layer 10 with
The mode with gap 25 is wound with the enhancement layer (coil case) 30 of wire rod 20 between adjacent wire rod 20；And to enhancement layer
The outer layer 40 that (coil case) 30 is coated.In addition, it in fig. 2, in order to help to understand, represents to have removed a part for outer layer 40
State.
Internal layer 10 is formed by resin, and can be inserted into seal wire or other conduits in inside.The resin material for forming internal layer 10 does not have
It is particularly limited to, but in the first embodiment, uses PTFE (polytetrafluoroethylene (PTFE)).
In internal layer 10, equipped with the coil case 30 as enhancement layer.Towards front end side right direction wound skein product 20 and shape
Into the coil case 30.As the material for the wire rod 20 for forming coil case 30, in the first embodiment, stainless steel has been used
(SUS304), but it's not limited to that.Such as the metal materials such as tungsten, Ni-Ti alloys are not used only, it can also use and strengthen modeling
Expect resin materials such as (PEEK).In addition, the coiling direction for forming the wire rod 20 of coil case 30 can also be left towards front end side
Direction.
In the periphery of coil case 30, the outer layer 40 being made of resin is formed with, internal layer 10 and coil case 30 are wrapped
It covers.The resin material for forming outer layer 40 is not particularly limited, and uses polyamide, polyamide elastomer, polyester, polyurethane etc..
The sheet material 70 being made of resin is bonded in the front end of above-mentioned catheter shaft 60 (with reference to Fig. 1).Form the sheet material 70
Resin be not particularly limited, but be made of polyurethane, polyurethane elastomer etc..Alternatively, it is also possible to make sheet material 70 containing radiation
The powder of line impermeability.For example, radioactive ray impermeability is contained by range of the sheet material 70 in about 65w%~about 90w%
Powder (for example, tungsten powder), so as to which when carrying out coronarography, the operators such as doctor can accurately hold conduit 1
Position.
As shown in figure 3, internal layer 10 has the peripheral surface 15 of concaveconvex shape, the peripheral surface 15 of the concaveconvex shape is in wire rod 20
Position, which is formed with protrusion 22, is formed with recess portion 24 in the position in gap 25 forms.In addition, recess portion 24 of the outer layer 40 in internal layer 10
Position has protrusion 50, which penetrates through gap 25 and deeper enter than enhancement layer (coil case) 30, and in axis
It upwardly extends.
The protrusion 50 of outer layer 40 becomes close to trapezoidal shape.Compared to wire rod 20 immediate vicinity (in other words, adjacent
Protrusion 22 between immediate place) upper bottom length L1, the length L2 longer of the bottom near the recess portion 24 of internal layer 10
(L2 ＞ L1).In addition, the peripheral surface 15 of outer layer 40 along the concaveconvex shape of internal layer 10 has the inner peripheral surface 42 of corresponding concaveconvex shape.
In conduit 1, outer layer 40 has protrusion 50, the protrusion 50 perforation gap in the position of the recess portion 24 of internal layer 10
25 and deeper enter than enhancement layer (coil case) 30, and extend in the axial direction, so as to improve connecing for internal layer 10 and outer layer 40
Intensity is closed, and the anchoring effect of 30 hooking of layer (coil case) firmly is reinforced by the protrusion 50 of outer layer 40, is inserted by conduit 1
Whens entering to blood vessel, bile duct, ductus pancreaticus etc., even if in outer layer 40 in narrow part or choking portion (preceding extreme direction and rear end in an axial direction
Direction) be stretched in the case of, can also reduce the possibility that outer layer 40 is removed from internal layer 10.
Then, the conduit 2 of second embodiment is illustrated with reference to Fig. 4.If only pair with conduit 1 shown in Fig. 3 not
It is illustrated with putting, then in conduit 2, the inner peripheral surface of the coil case 30 as enhancement layer is buried in internal layer 10a, the opposing party
Face, the peripheral surface of the coil case 30 as enhancement layer are buried in outer layer 40a.Internal layer 10a has the peripheral surface of concaveconvex shape
15a, the peripheral surface 15a of the concaveconvex shape are formed with protrusion 22a in the position of wire rod 20, are formed with recess portion in the position in gap 25
24a is formed.In addition, outer layer 40a has protrusion 50a, protrusion 50a perforations gap in the position of the recess portion 24a of internal layer 10a
25 and deeper enter than enhancement layer (coil case) 30, and extend in the axial direction.
Identical with the protrusion 50 of conduit 1, the protrusion 50a of outer layer 40a becomes close to trapezoidal shape.Compared to wire rod 20
Immediate vicinity (in other words, the immediate place between adjacent protrusion 22a) upper bottom length L3, in the recessed of internal layer 10a
The length L4 longer (L4 ＞ L3) of bottom near portion 24a.In addition, peripheral surfaces of the outer layer 40a along the concaveconvex shape of internal layer 10a
15a has the inner peripheral surface 42a of corresponding concaveconvex shape.
Identical with conduit 1 in conduit 2, outer layer 40a has protrusion 50a in the position of the recess portion 24a of internal layer 10a, should
Protrusion 50a penetrates through gap 25 and deeper enters than enhancement layer (coil case) 30, and extend in the axial direction, in improving
The bond strength of layer 10a and outer layer 40a, and it is reinforced what 30 hooking of layer (coil case) was lived according to the protrusion 50a of outer layer 40a
Anchoring effect, when conduit 2 is inserted into blood vessel, bile duct, ductus pancreaticus etc., even if in outer layer 40a on narrow part or choking portion edge
In the case that axial (preceding extreme direction and rear extreme direction) is stretched, the possibility that outer layer 40a is removed from internal layer 10a can be also reduced
Property.
Then, the conduit 3 of third embodiment is illustrated with reference to Fig. 5.If only pair with conduit 1 shown in Fig. 3 not
It is illustrated with putting, then in conduit 3, the coil case 30 as enhancement layer is formed in the periphery of internal layer 10b.Internal layer 10b has
The peripheral surface 15b of concaveconvex shape, the peripheral surface 15b of the concaveconvex shape are formed with protrusion 22b in the position of wire rod 20, in gap 25
Position be formed with recess portion 24b and form.In addition, outer layer 40b has protrusion 50b in the position of the recess portion 24b of internal layer 10b, it should
Protrusion 50b penetrates through gap 25 and deeper enters than enhancement layer (coil case) 30, and extend in the axial direction.
Identical with the protrusion 50 of conduit 1, the protrusion 50b of outer layer 40b becomes close to trapezoidal shape.Compared to adjacent
Protrusion 22b between immediate place upper bottom length L5, the length L6 of the bottom near the recess portion 24b of internal layer 10b compared with
Long (L6 ＞ L5).In addition, the peripheral surface 15b of outer layer 40b along the concaveconvex shape of internal layer 10b forms the inner circumferential of corresponding concaveconvex shape
Face 42b.
Identical with conduit 1 in conduit 3, outer layer 40b has protrusion 50b in the position of the recess portion 24b of internal layer 10b, should
Protrusion 50b penetrates through gap 25 and deeper enters than enhancement layer (coil case) 30, and extend in the axial direction, in improving
The bond strength of layer 10b and outer layer 40b, and it is reinforced what 30 hooking of layer (coil case) was lived according to the protrusion 50b of outer layer 40b
Anchoring effect, when conduit 3 is inserted into blood vessel, bile duct, ductus pancreaticus etc., even if in outer layer 40b on narrow part or choking portion edge
In the case that axial (preceding extreme direction and rear extreme direction) is stretched, the possibility that outer layer 40b is removed from internal layer 10b can be also reduced
Property.
Then, the conduit 4 of the 4th embodiment is illustrated with reference to Fig. 6 and Fig. 7.If only pair with Fig. 2 and Fig. 3 institutes
The difference of conduit 1 shown illustrates, then in conduit 4, has successively since inside in the radial direction：Internal layer 10c；
Multiple wire rod 20a, 20b are mutually woven into internal layer 10c and there is the enhancement layer of gap 25a between adjacent wire rod 20a, 20b
(braiding layer) 35；And the outer layer 40c coated to enhancement layer (braiding layer) 35 (with reference to Fig. 6).In addition, in figure 6, in order to
Help understands, represents to have removed the state of a part of outer layer 40c.
Enhancement layer (braiding layer) 35 be the first wire rod 20a and the second wire rod 20b mutually with mesh-shape (sieve-mesh) be woven into and
Into layer, the first wire rod 20a towards front end side right direction wind, on the other hand, the second wire rod 20b towards front end side to the left
To winding.In the 4th embodiment, alternately it is woven into 8 first wire rod 20a and 8 second wire rod 20b and amounts to 16 (8 × 8
Root) wire rod, so as to form enhancement layer (braiding layer) 35.
The material of the first wire rod 20a and the second wire rod 20b of enhancement layer (braiding layer) 35 are formed either identical material
Material, can also use different materials.In the 4th embodiment, the first wire rod for being made of tungsten has been used and by stainless steel
(SUS304) the second wire rod formed, but be not particularly limited, the resin material other than metal can also be used (for example, strengthening
Plastics).
As shown in fig. 7, internal layer 10c has the peripheral surface 15c of concaveconvex shape, the peripheral surface 15c of the concaveconvex shape is first
The position of wire rod 20a and the second wire rod 20b, which is formed with protrusion 22c, is formed with recess portion 24c in the position of gap 25a forms.Separately
Outside, there is outer layer 40c protrusion 50c, protrusion 50c to penetrate through gap 25a and compare and add in the position of the recess portion 24c of internal layer 10c
Strong layer (braiding layer) 35 deeper enters, and extend in the axial direction.
The protrusion 50c of outer layer 40c becomes close to trapezoidal shape.Compared to the First Line for forming enhancement layer (braiding layer) 35
The length at the upper bottom of the immediate vicinity of material 20a and the second wire rod 20b (in other words, immediate place between adjacent protrusion 22c)
L7, the length L8 longer (L8 ＞ L7) of the bottom near the recess portion 24c of internal layer 10c.In addition, outer layer 40c is along the recessed of internal layer 10c
The peripheral surface 15c of convex form has the inner peripheral surface 42c of corresponding concaveconvex shape.
In conduit 4, outer layer 40c in the position of the recess portion 24c of internal layer 10c there is protrusion 50c, protrusion 50c to pass through
Lead to gap 25 and deeper enter than enhancement layer (braiding layer) 35, and extend in the axial direction, so as to improve internal layer 10c and outer layer
The bond strength of 40c, moreover, the anchoring effect of 35 hooking of layer (braiding layer) firmly is reinforced according to the protrusion 50c of outer layer 40c,
When conduit 4 is inserted into blood vessel, bile duct, ductus pancreaticus etc., even if in outer layer 40c in narrow part or choking portion (front end in an axial direction
Direction and rear extreme direction) be stretched in the case of, can also reduce the possibility that outer layer 40c is removed from internal layer 10c.
Then, the conduit 5 of the 5th embodiment is illustrated with reference to Fig. 8.If only pair with conduit 1 shown in Fig. 3 not
It is illustrated with point, then in conduit 5, internal layer 10d has the peripheral surface 15d, the peripheral surface 15d of the concaveconvex shape of concaveconvex shape
Protrusion 22d is formed in the position of wire rod 20, recess portion 24d is formed in the position in gap 25 and forms.In addition, including outer layer 40d
Layer 10d recess portion 24d position have protrusion 50d, the protrusion 50d perforation gap 25 and than enhancement layer (coil case) 30 more
Enter deeply, and extend in the axial direction.
Identical with the protrusion 50 of conduit 1, the protrusion 50d of outer layer 40d becomes close to trapezoidal shape.Compared to wire rod 20
Immediate vicinity (in other words, the immediate place between adjacent protrusion 22d) upper bottom length L9, in the recessed of internal layer 10d
Length (in other words, the axial maximum length of the protrusion 50d of outer layer 40d) L10 longer (L10 ＞ of bottom near portion 24d
L9).In addition, length (in other words, the axial maximum of the protrusion 50d of outer layer 40d of the bottom of the protrusion 50d of outer layer 40d
Length) L10 than the gap 25 of enhancement layer (coil case) 30 axial length L11 long (L10 ＞ L11) (reference Fig. 8).Also,
The peripheral surface 15d of outer layer 40d along the concaveconvex shape of internal layer 10d has the inner peripheral surface 42d of corresponding concaveconvex shape.
In this way, in conduit 5, length (in other words, the protrusion of outer layer 40d of the bottom of the protrusion 50d of outer layer 40d
The axial maximum length of 50d) L5 than the gap 25 of enhancement layer (coil case) 30 axial length L6 long, even if so as to outside
In the case that layer 40d is stretched to radial outside, the protrusion 50d of outer layer 40d is also reinforced 30 hooking of layer (coil case) and lives, energy
Outer layer 40d is enough reduced from internal layer 10d to the possibility of radial direction stripping.The protrusion 50d of outer layer 40d and enhancement layer (coil as a result,
Body) 30 anchoring effect not only becomes larger, but also also become larger radially in the axial direction.
Then, the balloon catheter 6 of sixth embodiment is illustrated with reference to Fig. 9 and Figure 10.Figure 10 is to be exaggerated Fig. 9
D portions enlarged drawing.Balloon catheter 6 is, for example, to be used to be expanded and treated to narrow part or choking portion using treatment
Balloon catheter.
As shown in figure 9, balloon catheter 6 mainly by air bag 90, sheet material 100, outer shaft 110, inner shaft 60a, intensive aspect 120, with
And conjugation tube 130 is formed.
The air bag 90 expanded to narrow part or choking portion is made of resin parts, and the front end of air bag 90 is engaged in
The front end of inner shaft 60a and sheet material 100, the rear end of air bag 90 are engaged in the front end of outer shaft 110.
Outer shaft 110 is to form to supply the liquid such as contrast agent, normal saline solution to expand air bag 90
The tubular part of expanding lumen 116.Outer shaft 110 since front end side successively include front end outside axle portion 111, guidewire port portion 113,
Axle portion 117 outside intermediate outer axle portion 115 and rear end.Axle portion 111 and intermediate outer axle portion 115 are by polyamide, polyamide outside front end
The pipe that the resins such as elastomer, polyolefin, polyester, polyester elastomer are formed.Guidewire port portion 113 is the axle portion outside front end that is interconnected
111st, the part of intermediate outer axle portion 115 and inner shaft 60a.
Axle portion 111 is inserted into inner shaft 60a outside front end, is formed with above-mentioned expansion between axle portion 111 and inner shaft 60a outside front end
Open tube chamber 116.
Axle portion 117 is the metal tubular part of referred to as so-called hypotube outside rear end.The front end of axle portion 117 is inserted outside rear end
Enter and be engaged in the rear end of axle portion 115 outside centre.The rear end of axle portion 117 is equipped with conjugation tube 130 outside rear end.If from that can pacify
The supply (not shown) of pressurizer loaded on conjugation tube 130 is for liquid such as contrast agent, the normal saline solutions expanded to air bag 90
Body, then liquid air bag 90 is expanded by expanding lumen 116.In addition, the material of axle portion 117 does not limit especially outside rear end
It is fixed, the superelastic alloy such as stainless steel (SUS302, SUS304), Ni-Ti alloys can be used.
Inner shaft 60a forms the guidewire lumen 62 for being internally inserted into seal wire.In addition, the rear end of inner shaft 60a passes through engagement
Rear end side guidewire port 134 is formed in the guidewire port portion 113 of outer shaft 110.Operator can be from the rear end side guidewire port
134 replace seal wire.
Sheet material 100 is bonded in the front end of the front end of inner shaft 60a and air bag 90.Sheet material 100 is formed by soft resin.
Although material is not particularly limited, polyurethane, polyurethane elastomer etc. can be used.In addition, front end sheet 100 has in front end
There is front end side guidewire port 133.
The inner circumferential of the front end of axle portion 117 is equipped with intensive aspect 120 outside rear end.Intensive aspect 120 is that section is round and court
The made of metal wire rod of forward end and the cone-shaped of thin footpath.The material of intensive aspect 120 is not particularly limited, and can use stainless steel
(SUS304), the superelastic alloy such as Ni-Ti alloys.The intensive aspect 120 by axle portion outside centre 115 and guidewire port portion 113,
And extend to axle portion 111 outside front end.In addition, intensive aspect 120 has the promotion part 122 that can be connected to guidewire port portion 113.
In the inside of air bag 90, in the periphery of inner shaft 60a, there are two concentrator markers 95 for installation.The operators such as doctor exist as a result,
Can accurately be held during coronarography the position of air bag 90, as a result, reliably to narrow part or choking portion
Carrying out expansion becomes easy.
As shown in Figure 10, inner shaft 60a has successively since inside in the radial direction：Internal layer 10e；In internal layer 10e
The enhancement layer (coil case) 30 of wire rod 20 is wound between interior adjacent wire rod 20 in a manner of with gap 25；And to enhancement layer
The outer layer 40e that (coil case) 30 is coated.
Internal layer 10e has the peripheral surface 15e of concaveconvex shape, and the peripheral surface 15e of the concaveconvex shape is in the position shape of wire rod 20
It is formed into having protrusion 22e, being formed with recess portion 24e in the position in gap 25.In addition, recess portion 24es of the outer layer 40e in internal layer 10e
There is protrusion 50e, protrusion 50e to penetrate through gap 25 and deeper enter than enhancement layer (coil case) 30, Er Qie for position
Axis upwardly extends.
Identical with the protrusion 50 of conduit 1, the protrusion 50e of outer layer 40e becomes close to trapezoidal shape.Compared to wire rod 20
Immediate vicinity (in other words, the immediate place between adjacent protrusion 22e) upper bottom length L12, in the recessed of internal layer 10e
Length (in other words, the axial maximum length of the protrusion 50e of outer layer 40e) L13 longer (L13 ＞ of bottom near portion 24e
L12).In addition, the peripheral surface 15e of outer layer 40e along the concaveconvex shape of internal layer 10e has the inner peripheral surface 42e of corresponding concaveconvex shape.
In the position of the recess portion 24e of internal layer 10e there is protrusion 50e, protrusion 50e to pass through in inner shaft 60a, outer layer 40e
Lead to gap 25 and deeper enter than enhancement layer (coil case) 30, and extend in the axial direction, so as to improve internal layer 10e and outer layer
The bond strength of 40e, and the anchoring effect of 30 hooking of layer (coil case) firmly is reinforced according to the protrusion 50e of outer layer 40e,
Whens balloon catheter 6 is inserted into blood vessel, bile duct, ductus pancreaticus etc., even if in outer layer 40e at axial (preceding extreme direction and rear extreme direction)
On be stretched in the case of, can also reduce the possibility that outer layer 40e is removed from internal layer 10e.
Also, outer layer 40e has the peripheral surface 45 of concaveconvex shape, and the peripheral surface 45 of the concaveconvex shape is with along internal layer 10e's
The mode of peripheral surface 15e is formed with protrusion 46 in the position of wire rod 20, is formed with recess portion 48 in the position in gap 25 and forms.
Air bag 90 enters the recess portion 48 of outer layer 40e and is engaged in the peripheral surface 45 of outer layer 40e.In other words, in air bag 90
Front end, equipped with the protruding portion 92 to be protruded into the inside circumferential direction of the mode of the recess portion 48 of outer layer 40e.
In this way, it is engaged by the protruding portion 92 to air bag 90 and the recess portion 48 of outer layer 40e, so as to improve 90 He of air bag
Even if the bond strength of outer layer 40e in the case where air bag 90 is made to expand radially, can also reduce air bag 90 from outer layer
The possibility of 40e strippings.In addition, by the way that air bag 90 is made to enter the recess portion 48 of outer layer 40e, so as to assure air bag 90 and outer layer
The bond strength of 40e, and the thickness of air bag 90 can be made thinning, as a result, it is possible to improve balloon catheter 6 relative to blood vessel,
The insertion of bile duct, ductus pancreaticus etc..
In addition, as Fig. 9 and inner shaft 60a of balloon catheter shown in Fig. 10 6, the first~the 5th can also be used to implement
The conduit 1~5 of mode.
In addition, in the inner shaft 60a of balloon catheter 6, since inside there is internal layer 10e successively in the radial direction, strengthen
Layer (coil case) 30 and the outer layer 40e coated, but it's not limited to that.For example, as shown in figure 11, implement the 7th
In the balloon catheter 7 of mode, inner shaft 60b between internal layer 10e and adjacent wire rod 20 in internal layer 10e with gap
25 mode is wound with the enhancement layer (coil case) 30 of wire rod 20.In other words, different from balloon catheter 6, inner shaft 60b does not have outer layer
40e。
If the difference only pair from balloon catheter 6 shown in Fig. 10 illustrates, in balloon catheter 7, air bag 90a into
Enter the recess portion 24e of internal layer 10e and be engaged in the peripheral surface 15e of internal layer 10e.Specifically, recess portions of the air bag 90a in internal layer 10e
There is protrusion 50f, protrusion 50f to penetrate through gap 25 and deeper enter than enhancement layer (coil case) 30 for the position of 24e, and
And extend in the axial direction.
The protrusion 50f of air bag 90a becomes close to trapezoidal shape.It is (in other words, adjacent compared to the immediate vicinity of wire rod 20
Protrusion 22 between immediate place) upper bottom length L14, the length L15 of the bottom near the recess portion 24e of internal layer 10e
Longer (L15 ＞ L14).
In balloon catheter 7, air bag 90a has the position protrusion 50f in the recess portion 24e of internal layer 10e, the protrusion
50f penetrates through gap 25 and deeper enters than enhancement layer (coil case) 30, and extend in the axial direction, so as to improve internal layer 10e
With the bond strength of air bag 90a, moreover, according to the protrusion 50f of air bag 90a be reinforced 30 hooking of layer (coil case) live anchoring
Effect, when balloon catheter 7 is inserted into blood vessel, bile duct, ductus pancreaticus etc., even if existing in air bag 90a in narrow part or choking portion
In the case that axial (preceding extreme direction and rear extreme direction) is stretched, the possibility that air bag 90a is removed from internal layer 10e can be also reduced
Property.
In addition, by the way that air bag 90 is made to enter the recess portion 24e of internal layer 10e, so as to assure air bag 90a and internal layer 10e's
Bond strength, and the thickness of air bag 90a can be made thinning, as a result, it is possible to improve balloon catheter 7 relative to blood vessel, bile duct,
The insertion of ductus pancreaticus etc..
In addition, in above-mentioned conduit 1~5 and balloon catheter 6,7, to outer layer 40,40a, 40b, 40c, 40d, 40e
The protrusion 50f of protrusion 50,50a, 50b, 50c, 50d, 50e and air bag 90a is illustrated with approaching trapezoidal shape,
But which kind of shape can.
For example, as shown in figure 12, in the conduit 8 of the 8th embodiment, internal layer 10f has the peripheral surface of concaveconvex shape
15f, the peripheral surface 15f of the concaveconvex shape are formed with protrusion 22f in the position of wire rod 20, are formed with recess portion in the position in gap 25
24f is formed.In addition, outer layer 40f has protrusion 50g, protrusion 50g perforations gap in the position of the recess portion 24f of internal layer 10f
25 and deeper enter than enhancement layer (coil case) 30, and extend in the axial direction.
The protrusion 50g of outer layer 40f becomes L-shaped.Compared to wire rod 20 immediate vicinity (in other words, in adjacent protrusion
Immediate place between 22f) upper bottom length L16, the length L17 longer of the bottom near the recess portion 24f of internal layer 10f
(L17 ＞ L16).In addition, the peripheral surface 15f of outer layer 40f along the concaveconvex shape of internal layer 10f has the inner circumferential of corresponding concaveconvex shape
Face 42f.
In addition, in conduit 8, only extreme direction extends the protrusion 50g of outer layer 40f, but it's not limited to that, also may be used backward
Be only forward extreme direction extension shape.
In addition, as shown in figure 13, in the conduit 9 of the 9th embodiment, internal layer 10g has the peripheral surface of concaveconvex shape
15g, the peripheral surface 15g of the concaveconvex shape are formed with protrusion 22g in the position of wire rod 20, are formed with recess portion in the position in gap 25
24g is formed.In addition, outer layer 40g has protrusion 50h, protrusion 50h perforations gap in the position of the recess portion 24g of internal layer 10g
25 and deeper enter than enhancement layer (coil case) 30, and extend in the axial direction.
The protrusion 50h of outer layer 40g is divided into two strands near the recess portion 24g of internal layer 10g.Center compared to wire rod 20 is attached
The closely length L18 at the upper bottom in (in other words, the immediate place between adjacent protrusion 22g), it is attached in the recess portion 24g of internal layer 10g
The length L19 longer (L19 ＞ L18) of near bottom.In addition, outer layer 40g has along the peripheral surface 15g of the concaveconvex shape of internal layer 10g
There is the inner peripheral surface 42g of corresponding concaveconvex shape.
Also, in the above description, coil case 30 and braiding layer 35 are instantiated, but and be defined in as enhancement layer
This.For example, as conduit 1~5,8,9 and balloon catheter 6,7, can also spiral helicine cut be set in hypotube (metal tube)
Seam, and use using the joint-cutting as the enhancement layer in gap.
The explanation of symbol
1~5,8,9-conduit, 6,7-balloon catheter, the peripheral surface of 10~10g-internal layer, 15~15g-internal layer, 20,
20a, 20b-wire rod, 22~22g-protrusion (internal layer), 24~24g-recess portion (internal layer), 30,35-enhancement layer, 40~40g-
Outer layer, the inner peripheral surface of 42~42g-outer layer, 46-protrusion (outer layer), and 47-recess portion (outer layer), 50~50h-protrusion, 60-
Catheter shaft, 60a, 60b-inner shaft, 70,100-sheet material, 80,130-conjugation tube, 90,90a-air bag, 92-protruding portion,
110-outer shaft, 120-intensive aspect.
Claims (3)
1. a kind of conduit, which is characterized in that have：
The internal layer of tubulose；
In above-mentioned internal layer or the periphery of above-mentioned internal layer, above-mentioned line is wound in a manner of there is gap between adjacent wire rod
The enhancement layer of material；And
To the outer layer that above-mentioned enhancement layer is coated,
Above-mentioned internal layer has the peripheral surface of concaveconvex shape, and the peripheral surface of the concaveconvex shape is formed with convex in the position of above-mentioned wire rod
Portion is formed with recess portion in the position in above-mentioned gap and forms,
Above-mentioned outer layer has protrusion in the position of the above-mentioned recess portion of above-mentioned internal layer, the protrusion penetrate through above-mentioned gap and than above-mentioned
Enhancement layer deeper enters, and extends in the axial direction.
2. conduit according to claim 1, which is characterized in that
The axial length of the above-mentioned protrusion of above-mentioned outer layer is longer than the axial length in the above-mentioned gap of above-mentioned enhancement layer.
3. a kind of balloon catheter, has：
Conduit described in claims 1 or 2；And
The air bag of above-mentioned outer layer is engaged in,
Above-mentioned balloon catheter is characterized in that,
Above-mentioned outer layer has a peripheral surface of concaveconvex shape in a manner of the above-mentioned peripheral surface along above-mentioned internal layer, the concaveconvex shape it is outer
Circumferential surface, which is formed with protrusion in the position of above-mentioned wire rod, is formed with recess portion in the position in above-mentioned gap forms,
Above-mentioned air bag enters the above-mentioned recess portion of above-mentioned outer layer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/077894 WO2018055706A1 (en) | 2016-09-21 | 2016-09-21 | Catheter and balloon catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108156808A true CN108156808A (en) | 2018-06-12 |
| CN108156808B CN108156808B (en) | 2021-04-23 |
Family
ID=61618281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680002385.2A Active CN108156808B (en) | 2016-09-21 | 2016-09-21 | Catheter and balloon catheter |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10722682B2 (en) |
| EP (1) | EP3517161B1 (en) |
| JP (1) | JP6296580B1 (en) |
| KR (2) | KR20200036062A (en) |
| CN (1) | CN108156808B (en) |
| WO (1) | WO2018055706A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111230527A (en) * | 2020-02-27 | 2020-06-05 | 山东大学 | Auxiliary supporting device, system and method for thin-wall cylindrical part machining |
| CN116138924A (en) * | 2022-10-20 | 2023-05-23 | 深圳朗医科技有限公司 | Anti-compression corrosion-resistant tumor ureteral stent |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3524309B1 (en) * | 2016-10-04 | 2024-04-10 | Asahi Intecc Co., Ltd. | Catheter and balloon catheter |
| EP3762082A1 (en) * | 2018-03-06 | 2021-01-13 | Medtronic Vascular Inc. | Rapid exchange balloon catheter |
| DE102018121206A1 (en) * | 2018-08-30 | 2020-03-05 | Karl Storz Se & Co. Kg | Endoscopic shaft with a layered structure and method for producing such |
| US11813420B2 (en) | 2020-03-25 | 2023-11-14 | Medtronic Vascular, Inc. | Balloon catheter |
| EP4331652A4 (en) * | 2021-04-26 | 2025-02-26 | Asahi Intecc Co., Ltd. | CATHETER |
| JP2025506568A (en) * | 2022-02-07 | 2025-03-11 | ジュニア．， ラム， エイチ． ポール， | Medical Devices for Interventional MRI |
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- 2016-09-21 KR KR1020207009081A patent/KR20200036062A/en not_active Withdrawn
- 2016-09-21 CN CN201680002385.2A patent/CN108156808B/en active Active
- 2016-09-21 JP JP2016574028A patent/JP6296580B1/en active Active
- 2016-09-21 KR KR1020177007587A patent/KR102113385B1/en active Active
- 2016-09-21 EP EP16840305.3A patent/EP3517161B1/en active Active
- 2016-09-21 WO PCT/JP2016/077894 patent/WO2018055706A1/en active Application Filing
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2017
- 2017-03-23 US US15/467,696 patent/US10722682B2/en active Active
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| CN111230527A (en) * | 2020-02-27 | 2020-06-05 | 山东大学 | Auxiliary supporting device, system and method for thin-wall cylindrical part machining |
| CN116138924A (en) * | 2022-10-20 | 2023-05-23 | 深圳朗医科技有限公司 | Anti-compression corrosion-resistant tumor ureteral stent |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102113385B1 (en) | 2020-05-20 |
| JPWO2018055706A1 (en) | 2018-09-27 |
| EP3517161A4 (en) | 2020-08-26 |
| JP6296580B1 (en) | 2018-03-20 |
| US20180078743A1 (en) | 2018-03-22 |
| EP3517161B1 (en) | 2021-06-16 |
| WO2018055706A1 (en) | 2018-03-29 |
| US10722682B2 (en) | 2020-07-28 |
| KR20200036062A (en) | 2020-04-06 |
| CN108156808B (en) | 2021-04-23 |
| EP3517161A1 (en) | 2019-07-31 |
| KR20180044834A (en) | 2018-05-03 |
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